/*
 * Licensed under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.submarine.common;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @file org.submarine.common.NamedThreadFactory.java
 *
 * 命名线程工厂
 * 
 * @author gaojian
 * @created 2013-8-18 上午12:18:32
 * @version 0.0.1
 * @since 0.0.1
 * 
 */
public class NamedThreadFactory implements ThreadFactory {

	private static final AtomicInteger POOL_SEQUENCE = new AtomicInteger(1);

	private final AtomicInteger threadNum = new AtomicInteger(1);

	private final String prefix;

	private final boolean daemo;

	private final ThreadGroup group;

	public NamedThreadFactory() {
		this("pool-" + POOL_SEQUENCE.getAndIncrement(),false);
	}

	public NamedThreadFactory(String prefix) {
		this(prefix,false);
	}

	public NamedThreadFactory(String prefix,boolean daemo) {
		this.prefix = prefix + "-thread-";
		this.daemo = daemo;
        SecurityManager s = System.getSecurityManager();
        group = ( s == null ) ? Thread.currentThread().getThreadGroup() : s.getThreadGroup();
	}

	public Thread newThread(Runnable runnable) {
		String name = prefix + threadNum.getAndIncrement();
        Thread ret = new Thread(group,runnable,name,0);
        ret.setDaemon(daemo);
        return ret;
	}

	public ThreadGroup getThreadGroup() {
		return group;
	}

}
